My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
GENERAL31582
DRMS
>
Back File Migration
>
General Documents
>
GENERAL31582
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 7:54:38 PM
Creation date
11/23/2007 7:02:54 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981029
IBM Index Class Name
General Documents
Doc Date
11/14/1996
Doc Name
PROPOSED DECISION & FINDINGS OF COMPLIANCE FOR SL6
From
Full Phase II & III for Pit Area owned by Eilts
Permit Index Doc Type
Findings
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
12
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
of 6 to 9 inches of topsoil be replaced on the regraded spoil. Topsoil depths were <br />checked in ten locations at the site on July 21, 1995. The average replacement depth of <br />all locations was found to be in compliance with the approved reclamation plan, and <br />therefore meets the requirement of Section 3.03.1(2)(b). <br />I~~getation Success <br />The approved Meadows No. 1 Mine permit application specifies that vegetative cover on <br />the portion of the pit area owned by the Eiltses must be adequate to control erosion. <br />Sun Coal Company had an analysis of the vegetation on the Eilts property done in <br />August 1994. At that time, the live vegetative cover of the area was estimated to be <br />42.3%. Litter accounted for an additional 30.4% of ground cover, leaving 27.3% of bare <br />ground. 1994 was an extremely dry year. Vegetative cover on this area in the years <br />following the study appeared to equal or exceed the 1994 cover, based on observations <br />made during bond release inspections. <br />Vegetative cover on this part of the mine is provided by nearly equal portions of grasses <br />and forbs. Dominant grasses are Pubescent wheatgrass (Agropyron tricophorum), Smooth <br />brome (Bromus rnermis), Sheep fescue (Festuca ovina), Thickspike wheatgrass (A. <br />dasystachyum), and Timothy (Ph[eum pratensis). Dominant forbs are Cicer Milkvetch <br />(Astragalus Cicer) and alfalfa (Medicago saliva). These are perennial species, all of which <br />appeared to be fairly vigorous and were producing seed. The grasses and alfalfa are <br />capable of supporting grazing on the reclaimed area. All of these species will help to <br />control erosion. <br />Erosion and De os <br />At the Meadows No. 1 Mine, there is no available baseline data regarding pre-mine <br />sediment contribution. Adjacent non-mined areas are inordinately dissimilar in vegetative <br />type. Non-mined areas are characterized by a dense cover of shrubs, with sparse grass <br />and forb understory and thick ground litter. The pit area, at the request of the <br />landowner and with the approval of this Division and the Colorado Division of Wildlife, <br />has been reclaimed for use as rangeland, commercial, and recreational areas with no <br />requirement for a shrub component. Vegetation on the reclaimed areas consists mainly <br />of grasses, rendering comparisons of the two areas questionable. <br />On August 20, 1995, June 20, 1996, and September 18, 1996, the Division conducted site <br />inspections for the purpose of determining the soil stability of reclaimed areas. The <br />reclaimed pit areas were examined during all three inspections, and the Sage/Grass <br />Vegetation Reference Area and an adjacent non-mined area were examined during the <br />1995 inspection. The Division observed that most of the reclaimed area had an adequate <br />cover of vegetation and litter to effectively preclude any significant loss of soil from the <br />reclaimed area. Erosion had occurred in the Bast on portions of the reclaimed area with <br />lesser vegetative cover, but there is little evidence of ongoing soil movement in these <br />areas at this time. Supporting this finding is the low frequency of observed soil pedestals, <br />Meadows No. 1 Mine 6 Phase Ill Bond Release <br />
The URL can be used to link to this page
Your browser does not support the video tag.